Viburnum trilobum, commonly known as the American cranberrybush or highbush cranberry, is a deciduous shrub native to North America. Typically growing to a height of 8-12 feet, it has an upright, spreading habit. The dark green leaves are three-lobed with serrated edges and turn shades of red and purple in the fall.
In the spring, the plant produces clusters of small white flowers, which are followed by bright red berries in the fall. These berries persist into winter and are edible, though tart, often used to make jams or sauces.
Viburnum trilobum is popular as an ornamental plant due to its attractive foliage, showy flowers, and colorful fruit. It also provides ecological benefits by offering food for birds, such as cedar waxwings.
The plant prefers moist soils but can tolerate some drought once established. It thrives best in full sun to partial shade and can be pruned after flowering if desired.
Overall, Viburnum trilobum is an attractive shrub that offers both aesthetic value in landscaping settings and ecological benefits for wildlife habitats.
The American cranberry bush is highly resistant to disease and is usually not susceptible to ailments. As for maintenance, this plant is fairly low-maintenance. When grown outdoors it needs only occasional watering, and larger plants typically do not need pruning. Smaller plants, however, should be pruned after they finish blooming. The American cranberry bush is appropriate for anyone who has an outdoor area, like a garden or a deck, and it does not demand extensive care experience.
How to keep Viburnum Trilobum.
Light
The American cranberry bush favors plentiful sunlight for optimal growth, yet it also has a notable ability to thrive with reduced sun exposure. Although ample sun encourages more vigorous growth, inadequate sunlight can impair its healthy development, resulting in sparse foliage and poor fruit production.
Water
Moist soil makes Viburnum trilobum more vigorous. Insufficient water decreases the ornamental value of the whole plant and leads to abnormal flowering. Water management is the key to survival during transplanting. The newly transplanted plants must be irrigated continuously for 3-4 weeks to ensure that the soil is fully absorbent and closely connected with the root system. During severe hot and dry conditions, 7 to 8 mm (0,28" - 0,31") of water weekly is sufficient. In daily maintenance, just keep the soil moist. Too much soil moisture affects air permeability, inhibits root respiration, causes rotten roots, and even causes the plant to die in severe cases.
Humidity
This plant will thrive in moderate humidity, which is probably the level in your home. However, misting it a few times a week can be very beneficial. Make sure the room has good ventilation.
Temperature
The American cranberry bush is highly adaptable to a variety of climate conditions, from scorching summers to chilly winters. Still, it has an optimal temperature range for growth. If temperatures rise too high, the plant is vulnerable to heat and humidity stress, which can lead to its death. In areas where temperatures approach the lower limit of its cold tolerance, it is important to apply insulation to protect the plant.
Fertilizer
Timing is essential for fertilizing the American cranberry bush. Start fertilizing in early spring and continue once a month until early summer. Fertilizer promotes lovely blooms and supplies energy both during dormancy and active growth.
Toxicity
Viburnum trilobum only causes mild upsets when eaten unripe or in large quantities.
Further reading →
The toxicity and danger assessments provided are for reference only. We do not assure their accuracy, so it's crucial not to depend on them. Seek professional advice when necessary for accurate guidance.
Botanical profile.
- Plant Type
- Tree, Shrub
- Life Cycle
- Perennial
- Genus
- Viburnum
- Family
- Viburnaceae
- Hardiness Zone
- 4-8
- Mature Height
- 1.83 m to 3.66 m
- Mature Spread
- 2.13 m
- Leaf Color
- Green, Red, Purple
- Leaf Type
- Deciduous
- Flower Color
- White
- Flower Size
- 7.62 cm to 10.16 cm
- Bloom Time
- Mid spring, Late spring
- Planting Time
- Spring, Autumn
- Harvest Time
- Late summer, Early fall, Mid fall
Other names.
